The reading of the characters
忍者 as
shinobi rather than
ninja is assured when these characters appear in certain grammatical positions. We cannot say today precisely how the medieval Japanese read these ideograms. There is, however, a strong argument for
shinobi no mono, especially where phonetic markers are available to aid the reading. The term
shinobi begins to appear in historical documents in the 14th century and undoubtedly predates the word
ninja.
From the standpoint of modern reading in English, "ninja" has become the familiar, fluent form, while
shinobi — though the more correct term — is less widely known and carries fewer popular connotations. For this reason I use both terms throughout this article, switching between them as convenient.
Equally debatable are the ideograms that may be read as
ninjutsu or
shinobi no jutsu, by which we mean the art and skills of the ninja. Both versions are correct, but the phonetic markers on period documents show
shinobi no jutsu as the proper reading, given that we have no records of words read as
ninjutsu.
Shinobi No Mono
Myths: Many enthusiasts of ninjutsu today hold that the term
ninja denotes a social class, like the term
samurai, and in doing so they ignore important historical facts. This mistaken interpretation also gave rise to the
myth of an "eternal struggle" between samurai and ninja, in which the samurai stood for GOOD and LIGHT and the ninja for DARKNESS and EVIL. According to such people, ninja existed as a parallel "shadow" military class with its own distinct hierarchy and codes, differing from those of the samurai; the ninja supposedly performed tasks the samurai could not, because the code of
Bushidō and other laws forbade them to him. Where and how this fabrication arose is hard to pin down, but a large share of this disinformation within the
shinobi no jutsu community is carried on the backs of the very teachers and instructors the world over, Japan included. Through their superficiality and greed they created the 20th-century ninja who confuses generations of young people to this day.
Facts: Soldiers of the
shinobi were recruited from various social strata of medieval Japan, but broadly we may say that most ninja came either from the ranks of the lower samurai class or from the foot soldiers known as
ashigaru. We may also say that the term
shinobi was the name of a profession and a set of skills — just as today a physician is a physician and a smith a smith — while the level of those skills is not defined by it in any way. It is today established that ninjutsu was mastered even by high-ranking samurai, such as
Uesugi Kenshin, called the Dragon of Echigo, and likewise his enemy "twin," the Tiger of Kai, the great
Takeda Shingen himself. All the battles of medieval Japan were decided by the use of ninjutsu to a far greater degree than is officially acknowledged today.
On the basis of analysis of historical documents, two main categories of ninja emerge, which unfortunately are not distinguished grammatically. The only way to identify which
shinobi is meant is to grasp the context of each historical reference.
- [1] A shinobi may be a man or a woman without any training, simply someone used for their innate abilities, however slight. For example, a person with a good memory may be used as a shinobi to record a mental image of a particular space, or a person with a good knowledge of a specific province (kyōdō) may be called upon to gather information of any kind in that land. This untrained individual is regarded as a ninja by the tacticians of medieval Japan, but is not what we would consider a ninja from our modern perspective.
- [2] The archetypal figure of the shinobi no mono — a man trained in the skills set out below, to whatever degree, and employed as needed by a general or by the daimyō himself.
It is important to realize that, on the one hand, the term
shinobi may denote a relatively incapable person sent on some mission at a lord's whim, while on the other,
shinobi may designate a group of highly qualified individuals, specialists engaged in covert operations that made them today's legends.
Very often the word
ninja also appears with two epithets, "
ninja as assassin" and "
ninja as spy," both of which deserve correction, as they do not match the whole truth. Ninja were indeed used as assassins, but the evidence for this activity is scant and represents a very small part of their sphere of operation.
The
shinobi was first and foremost a skilled maker and user of explosives and poisons, an arsonist and a saboteur; he could also break into fortified seats to steal property or information. He gathered information by eavesdropping, but also by theft. Occasionally he eliminated the inhabitants of target seats. Under cover of darkness he served as a guide for assault units in "no man's land." These skills are known collectively as
In-nin. He also played the role of messenger, using secret codes to convey messages by sound, by symbols and by written text.
The ninja was
NOT trained as an assassin; his primary task was "information-gatherer," and if opportunity arose, or if the situation required it, he was used as an assassin. The evidence points rather to the destruction of entire families (clans) and their homes, not of individual human targets.
Ninja were recruited from every social stratum of the population, but mostly came from families of the lower samurai classes and served in the retinue of a clan leader. As part of samurai culture,
shinobi soldiers were specialized as far-ranging scouts and secret agents who infiltrated enemy lines and carried out espionage and sabotage.
In an army, one shinobi was reckoned for roughly every hundred men. Their physical, military and combat skills were no different from those of their fellow samurai.
Besides various
bujutsu (martial styles), they also trained in different non-combat skills, so that on their missions they could appear in the roles of street vendors, merchants, actors, vagrants, hired swordsmen, and even priests and monks. These non-combat skills we call
Yo-nin.
Spies have existed as long as wars have been waged, but the
shinobi (also called in Japan
Yato, Yushi, Kanja, Kagi, Kamari, Kyoudan, Onmitsu, Oniwaban, Suppa, Rappa, Fuma, Iga No Mono, Koka No Mono, Nokizarru, Monogiki, Mitsumono and others — depending on the period or province) operated on the Japanese and Far Eastern scene from roughly the end of the 14th century, when the Chinese
Kan (
Cho, Saisaku or
Yutei) was "Japanized," until he gradually vanished in the turmoil of the Meiji reforms in the 19th century. He was replaced by a combination of modern spies and special army units, where the spy plays the role of informant and the special unit provides the striking force of attack. This division of the two main spheres of the ninja's work finally pushed these legendary men off the scene.
When the
Tokugawa clan took control of Japan in
1603, the country entered a period of relative peace and totalitarian control. The
shinobi no mono, as a decisive force on the battlefield, was no longer needed, and so their use shifted more into the sphere of espionage and counter-espionage.
The decline of their popularity hastened the activity of leading ninja in compiling records to preserve their teaching. In
1676 a
shinobi named
Fujibayashi Yasutake, who came from a samurai family, probably from Iga province, completed work on his masterpiece — a collection of information on
shinobi no jutsu that he had gained through personal experience. This collection is today known as the
Bansenshukai.
"In principle, the greatest and deepest secret in the shinobi traditions is contained in the chapter 'The Use of Spies' in The Art of War by the Chinese strategist Sun Tzu.
If you do not study this text thoroughly in every detail, and think that what is essential for the ninja are the various 'admirable' skills — such as crossing a water moat or a high wall — then you will be entirely off the mark and will, as the saying goes, put the cart before the horse." Fujibayashi Yasutake
GOKAN – THE FIVE SPIES
- Inkō No Kan — Local spies — Their purpose is to gather information and achieve their aims by using the local dialect. This is the same as the Japanese skill called dakkō, which literally means "copying from the mouth" and is a method of espionage, deception, or information-gathering through a good knowledge of the local dialect.
- Nairyō No Kan — Internal spies — Their aim is to lure a member of the enemy's retinue, or someone close to the enemy, and use him for one's own ends. A good internal spy will carry out his tasks thoroughly and precisely. But beware: the enemy may use this technique on you, winning over one of your men as his ally. Only rarely does one succeed in planting such a spy in the enemy's ranks; to do so means you must prepare them years in advance and with the utmost care, directing and controlling them before they are truly needed.
- Hantoku No Kan — Converted spies — Here it is a matter of captured enemy spies and their use for our own ends. Through them you can obtain exceptionally excellent information. In Japan this is called kaerinin or sorinin. You can use enemy shinobi agents by feeding them false information, which allows you to manipulate your enemy's plans to your advantage. It is precisely these converted spies whom, according to Sun Tzu, you should reward most liberally.
- Shichō No Kan — Doomed, or expendable, spies. They are those to whom we deliberately pass false information so that they carry it to the enemy. When the enemy uncovers the deception, these spies usually perish — sacrificed for the sake of the ruse.
- Tensei No Kan — Surviving spies are those trained in sabotage and reconnaissance carried out by infiltrating enemy lines and positions. This is the archetypal shinobi no mono from our modern perspective.
What follows from this short treatise for today's ninjutsu enthusiasts?
- [1] Ninjutsu is not a physical martial art — meaning a standalone fighting style — and it contains no instructions on how to fight man to man. It is rather a supplementary education of the samurai, encompassing specific tactical and strategic principles of obtaining and using information to defeat the enemy.
- [2] The practical combat disciplines practised by the samurai, and thus by the ninja, were kenjutsu (swordsmanship), iaijutsu (the art of the quick draw), yarijutsu (the art of spear fighting), kyūjutsu (archery), yabusame (mounted archery), shurikenjutsu (the throwing of short straight blades), taihojutsu (arresting and binding), bajutsu (horsemanship) and many others.
- [3] The shinobi soldiers formed no special social class of medieval Japan. A ninja could be anyone, at any social level.
- [4] The designations jonin (upper ninja), chunin (middle ninja) and genin (lower ninja) likewise do not refer to social status, as is often wrongly interpreted, but to the range of knowledge, experience and skill.
- [5] Ninja, or properly shinobi, is a term reserved for medieval Japan and the Japanese. It follows that no one today can become a ninja. Everyone, however, may study the period documents and in their free time revive the traditions of these soldiers, as various groups of historical fencing, period crafts and traditional Japanese martial skills do.
To serious students of
ninjutsu I recommend studying the following historical documents, which were also the source for this article:
- Yokan Denkai and Yokan Rigen — Study and traditional commentaries on the 13th chapter of The Art of War by Master Sun Tzu,
by Chikamatsu Shigenori, 1736
- Bansenshukai — "The Sea of Myriad Rivers Merging,"
by Fujibayashi Yasutake, 1676
- Shōninki — "The True Value of the Ninja,"
by Natori Sanjurō Masazumi, 1681
- Shinobi Hiden, better known as Ninpiden — "The Hidden Traditions of the Ninja,"
by Hattori Hanzo and others, 1560
On the sources: The period manuals cited above are available today in the modern English translations of Antony Cummins and Yoshie Minami: Bansenshūkai as The Book of Ninja (2013), Shōninki as True Path of the Ninja (2011), Ninpiden / Shinobi Hiden as The Secret Traditions of the Shinobi (2012); the commentaries of Chikamatsu Shigenori appeared in the Book of Samurai series. Japanese terms and names are given in the standard (Hepburn) romanization.